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Resistant To Corrosion High Alumina Refractory Bricks For Electric Furnace Tops

Categories High Alumina Refractory Bricks
Brand Name: Henan HengYu
Certification: ISO9001 CE
Place of Origin: ZhengZhou ,China
MOQ: 5Ton
Price: Negotiated
Payment Terms: T/T, Western Union, L/C
Supply Ability: 5000Ton Per Month
Delivery Time: 10 Days After Deposit
Packaging Details: Pallets With Plastic Belt And PE Bag , Also Accept Customize.
Al2o3: 55%-82%
Raw Materials: Calcined Bauxite
Application: Industrial Furnaces, Metallurgy
Color: Light Yellow
Size: As Request
Bulk Density: 2.3-2.7 g/cm3
Fe2O3: 2%
Product Name: High Alumina Brick For Lime Shaft Kiln
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Resistant To Corrosion High Alumina Refractory Bricks For Electric Furnace Tops

Resistant To Corrosion High Alumina Refractory Bricks For Electric Furnace Tops


Description


The high alumina brick is an alumina-silicate refractory material in which the Al2O3 content is more than 55%, and is calcined from a high-content alumina raw material such as a silicone raw material or a bauxite. High heat resistance and high temperature resistance at 1770 ° C and above. Has good slag resistance, mainly used in the masonry of steelmaking electric furnace, glass furnace, cement rotary furnace and so on.


Characteristics of high alumina bricks:


1. Refractoriness
More refractory than refractory clay bricks and semi-silica bricks, up to 1750-1790C, belonging to high-grade refractory materials.


2. Load softening temperature
Since the high aluminum has a high Al2O3 content, a low impurity content, and a low formation of the molten glass body, the fire-resistant softening temperature is higher than that of the refractory clay brick. However, since the mullite crystal has not yet formed a network structure, the load softening temperature is lower than the load softening temperature of the silica brick.


3. Slag resistance
High Al2O3 has high Al2O3 content, close to neutral refractory material, and can resist the erosion of acid slag and alkali slag. Because it contains SiO2, the resistance to alkali slag is less than acid resistance.


Features:


Mechanical strength

Excellent load-bearing properties

High temperature

Excellent resistance to spalling

Resistant to corrosion


Application:

1. Iron & steel making industry: Blast furnace, hot blast furnace(stove), pellet shaft furnace, hot metal ladle, steel ladle, tundish, heating furnace, soaking pit furnace, heat treatment furnace, refining furnace, reheating furnace, metal mixter furnace, annealing furnace, cupola furnace, electric arc furnace, induction furnace, AOD furnace, VOD furnace,etc thermal technology equipment.
2. Non-ferrous Metal industry: Smelting furnace, refining furnace, reverberatory furnace, converter furnace.
3. Building materials industry: Cement kiln, glass kiln, ceramic kiln, lime kilns, kiln car, tunnel kiln
4. Energy & Incineration: Coke oven, general boiler, power generation, boiler, circulating fluidized bed boiler, electric furnace, carbon rosating furnace, waste incinerators.
5. Others: Petrochemical industry furnace.


Physical and chemical indexes


Item/GradeFire clay brickHigh alumina brick
SK-30SK-32SK-34SK-35SK-36SK-37SK-38SK-40
AL2O3% (≥)3035384555657082
Fe2O3% (≤)2.52.5222222
Refractoriness(SK)3032343536373840
Refractoriness under load, 0.2MPa, °C (≥)12501300136014201450148015301600
Apparent porosity (%)22-2620-2420-2218-2020-2320-2320-2218-20
Bulk density (g/cm³)1.9-2.01.95-2.12.1-2.22.15-2.222.25-2.42.3-2.52.4-2.62.5-2.7
Cold crushing strength ,MPa (≥)2025304045506070

Product Details



Henan HengYu Kiln Refractory Co.,Ltd. now mainly produces refractory materials for steel, metallurgy, coking, cement, charcoal, glass and various industrial kiln furnaces. It produces more than 60,000 tons of various stereotyped and amorphous refractory materials annually.


Product Range

  • High Alumina Brick
  • Fire Clay Brick
  • Light Weight Insulating Brick
  • High Alumina Poly Light Weight Insulating Brick
  • Mullite Insulating Brick
  • Magnesia Series Brick
  • Phosphate High Alumina Wear-Resistant Brick
  • Corundum AZS Brick
  • Refractory Castables
  • Ceramic Fiber Blanket

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